Sinking big: BHP's carbon blessing

Background reading:

• When Samantha Langley realised that the tailings dam at BHP’s Nickel West mine could be a carbon sink, she could not have imagined it potentially offsetting all the company’s mining operations.
• The Clean Energy Regulator is considering making mine wastes eligible for carbon credits as BHP says one dam could offset its iron ore and nickel mines.

For more on the episode, visit the Tech Zero site on afr.com. AFR subscribers can also sign up for the weekly Carbon Challenge newsletter.

See omnystudio.com/listener for privacy information.